HDD Western Digital 4TB 3.5 inch Serial ATA III WD40EZAX

The Western Digital 4TB 3.5" Serial ATA III WD40EZAX is a 4 TB internal hard disk drive in a 3.5-inch form factor that uses the SATA III interface and spins at 5400 RPM. Designed for desktop systems and external storage enclosures that accept 3.5" drives, this HDD provides large-capacity storage for documents, multimedia libraries, backup archives and other data sets. The drive's design balances storage density and power efficiency for typical home and office workloads.

Advantages

This 4 TB WD Blue drive offers high-capacity storage with a 3.5" form factor and SATA III connectivity for reliable data transfer. The 5400 RPM spindle speed helps reduce power consumption and operating noise compared with higher-speed desktop drives. With a weight of approximately 0.57 kg and a proven drive family heritage, the HDD delivers stable performance for file storage, media streaming and routine backups.

Suitable for

• Desktop PCs and workstations needing additional mass storage
• External desktop enclosures that support 3.5" SATA drives
• Media libraries (video, photo, music) and personal archives
• Routine system backups and long-term file storage

Key specifications

• Capacity: 4000 GB
• Form factor: 3.5-inch
• Interface: Serial ATA III (SATA 6 Gb/s)
• Rotational speed: 5400 RPM
• Typical use: desktop / external desktop enclosure
• Weight: 0.57 kg

How to use

Install the WD40EZAX into a compatible 3.5" drive bay in your desktop PC or into a 3.5" external enclosure. Connect the drive to the motherboard or host using a SATA III data cable and to the power supply using a standard SATA power connector. Initialize and partition the drive using your operating system's disk management tools, then format the partitions with the desired file system to begin storing data. For optimal performance, ensure the SATA controller is configured for AHCI mode and that drive firmware and host drivers are up to date.

Recommendations

Use this HDD for mass storage, media libraries and routine backups rather than I/O-intensive database or virtualization workloads. Maintain regular backups and operate the drive within manufacturer-specified ambient temperature and vibration limits to preserve longevity.